Game totals carry an overround of approximately 4.76%. Player prop totals run 5–7%. Futures markets balloon to 20–40%. That spread matters more than almost any other factor in long-run totals betting.
What is overround, exactly?
Overround is the sum of implied probabilities across all outcomes in a market. At standard -110/-110 pricing on each side of a total, the implied probabilities add to roughly 104.76%. The extra 4.76% is the sportsbook's built-in margin — the house cut baked into every bet.
It goes by several names: overround, hold, juice, vig. All refer to the same thing. See the Over Under Betting Glossary for precise definitions of each term.
How does overround compare across market types?
| Market Type | Typical Overround | Standard Odds | Better suited for |
|---|---|---|---|
| Game totals (O/U) | ~4.76% | -110 / -110 | Recreational and sharp bettors alike |
| Player prop totals | 5–7% | Varies, often -115 or worse | Bettors with strong player-level data edges |
| Futures (season win totals, etc.) | 20–40% | Varies widely | Entertainment; not efficient for value seekers |
The numbers above come from overround analysis of US sportsbook markets. Futures are by far the worst market for bettors on a pure hold-rate basis.
Why do futures carry such high overround?
Books price futures early, often months in advance. Uncertainty is high, rosters change, and books adjust slowly. They compensate by padding each outcome heavily. A 30% hold means the average bettor needs a massive edge just to break even.
Player props sit in the middle. Books limit sharp action on props and refresh lines less frequently, which lets them widen margins. Still, 5–7% is far better than futures.
What does overround mean for your break-even rate?
At -110, a bettor must win more than 52.38% of wagers just to break even. That is the implied probability baked into the price. Drop the overround and that threshold falls. For a full breakdown of implied probability math, see Implied Probability: The Break-Even Rate Every Totals Bettor Must Know.
Some sportsbooks offer -105 on each side of a total instead of -110. That cuts the hold to approximately 2.38% and lowers the break-even win rate noticeably. Details are at Reduced Juice Over Under Bets.
How does this affect which over under bet you should place?
Simple rule: the lower the overround, the less ground a bettor has to overcome. Game totals are the most efficient market on this site's topic. Futures are the least efficient. That does not make game totals easy to beat — the 4.76% hold still grinds down recreational bettors over time. It just means you start from a better position than in any other market.
For a full explanation of how -110 pricing drives the standard hold, visit Over Under Odds and Payouts: How -110 Juice Works. For how sharp money moves lines and can signal which side has value, see Line Movement on Totals.
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